61 research outputs found
Jeux de mémoires, jeux de miroirs : appropriations historiques et justifications langagières des langues amazighe, arabe et tunisienne
Get PDF"Au printemps 2018, au Centre d’arts vivants Safia Farhat, à Radès, dans la banlieue sud de Tunis,
s’est tenue une exposition collective nommée Histoire(s). L’artiste plasticienne Aicha Filali y a planté
un "arbre-histoire" (Figure 1). Comme son nom l’indique, il s’agit d’une sculpture composée d’un
tronc et de branches sur lesquels des rétroviseurs sont disposés. Ils sont de formes différentes : ronde,
ovale, carrée, rectangulaire ; ils ont des emplacements différents : ils sont situés à des hauteurs et à
des latitudes différentes de l’arbre si bien qu’ils ne sont que partiellement visibles, même quand
le spectateur fait le tour complet de l’arbre ; enfin, les miroirs sont orientés de telle façon qu’ils ne
peuvent refléter les mêmes images : certains sont dirigés à droite, d’autres à gauche, d’autres plutôt
vers le haut, d’autres, encore, vers le bas. Au-dessous de ces rétroviseurs, des dates sont gravées sur
l’arbre marquant des évènements importants de l’histoire tunisienne. Les 17 dates vont de 1846,
année de l’abolition de l’esclavage, à 2014, année de la rédaction de la Constitution abrogeant
celle de 1959, en passant par la fondation du parti destourien (1934), l’indépendance (1956) ou les
émeutes du pain (1978). [...]"
Investigating Keystroke Dynamics and Their Relevance for Real-Time Emotion Recognition
No full textThere is strong evidence that emotional states affect the Human’s performance and decision making. Therefore, understanding Human emotions has become of great concern in the field of Human Computer Interaction (HCI). One way to online emotion recognition is through Keystroke Dynamics. It addresses the drawbacks of current methods which are intrusive and not user-friendly, expensive to implement, and neither realistic nor applicable in a real-world context. The keystroke dynamics approach focuses on analyzing the particular way a person types on a keyboard. In our research work, we start by developing a web application (EmoSurv) in order to collect the data and build a dataset. We generate datasets for free-text and fixed-text entries. These datasets are labeled with emotional states of the participants (Angry, Happy, Sad, Calm, and Neutral state). The obtained datasets are used for training and building models using machine learning algorithms. Outstanding accuracy rates are obtained reaching 93.922% and Kappa equal to 0.9197 using Random Committee algorithm. We finally provide a set of recommendations for future experimentation by comparing the different models generated
Rabies virus glycoprotein enhanced expression in Pichia pastoris using the constitutive GAP promoter
No full textInternational audienc
Comparison of the Concentrations of Long-Chain Alcohols (Policosanol) in Three Tunisian Peanut Varieties (Arachis hypogaea L.)
No full textInternational audiencePolicosanol (PC) is a mixture of high molecular weight aliphatic primary alcohols. Literature about the contents and compositions of PC derived from peanut varieties is scarce. Total PC composition and content in whole peanut grain samples from three varieties of peanut (two cultivars, AraC and AraT, and a wild one, AraA) were identified using a gas chromatograph system coupled with a mass spectrophotometer. The results show that, qualitatively, 21 components of peanut aliphatic alcohols were identified (C(14)-C(30)). Besides (C(18=)), the results exhibited a previously unreported mixture of PC compositions in the peanuts: the unsaturated PC (UPC), which are (C(20=)), (C(21=)), (C(22=)), and (C(24=)). The main components of total PC in Tunisian peanut kernels are docosanol (C(22)), (Z)-octadec-9-en-1-ol (C(18=)), hexadecanol (C(16)), and octadecanol (C(18)). Quantitatively, the total PC content of the whole peanut samples varied from 11.18 to 54.19 mg/100 g of oil and was higher than those of beeswax and whole sugar cane, which are sources of dietary supplements containing policosanol
In vitro and in vivo evaluation of antifungal combinations against azole-resistant Aspergillus fumigatus isolates
No full textAzole resistance in Aspergillus fumigatus (Af) has become a widespread threat and a major concern for optimal management of patients with invasive aspergillosis (IA). Combination of echinocandins with azoles is an attractive alternative option for the treatment of IA due to azole-resistant Af strains. The aim of this study was to evaluate the in vitro and in vivo combination of caspofungin (CAS) with either voriconazole (VRZ) or posaconazole (PSZ). In vitro interactions were assessed by two methods, and an animal model of IA in Galleria mellonella was used for in vivo evaluation. Assessment of efficacy was based on larvae mortality. Groups of 10 larvae were infected by 3 clinical strains of Af (azole susceptible, AfS; PSZ resistant, AfR1; VRZ and PSZ resistant strain, AfR2). In vitro, combination of CAS and azoles was indifferent against AfS, and AfR2, and a synergy was found for AfR1. When compared to VRZ monotherapy, the combination of VRZ at 4 µg/larva with CAS at 4 µg/larva improved survival of AfR2-infected larvae (p=0.0066). Combination of PSZ at 4µg/larva with CAS at 4 µg/larva improved survival of AfR1-infected larvae compared to CAS (p=0.0002) and PSZ (0.0024) monotherapy. Antagonism was never observed. In conclusion, the combination of caspofungin with azoles is a promising alternative for the treatment of azole resistant strains of Af
In vitro and in vivo evaluation of antifungal combinations against azole-resistant Aspergillus fumigatus isolates
Get PDFAzole resistance in Aspergillus fumigatus (Af) has become a widespread threat and a major concern for optimal management of patients with invasive aspergillosis (IA). Combination of echinocandins with azoles is an attractive alternative option for the treatment of IA due to azole-resistant Af strains. The aim of this study was to evaluate the in vitro and in vivo combination of caspofungin (CAS) with either voriconazole (VRZ) or posaconazole (PSZ). In vitro interactions were assessed by two methods, and an animal model of IA in Galleria mellonella was used for in vivo evaluation. Assessment of efficacy was based on larvae mortality. Groups of 10 larvae were infected by 3 clinical strains of Af (azole susceptible, AfS; PSZ resistant, AfR1; VRZ and PSZ resistant strain, AfR2). In vitro, combination of CAS and azoles was indifferent against AfS, and AfR2, and a synergy was found for AfR1. When compared to VRZ monotherapy, the combination of VRZ at 4 µg/larva with CAS at 4 µg/larva improved survival of AfR2-infected larvae (p=0.0066). Combination of PSZ at 4µg/larva with CAS at 4 µg/larva improved survival of AfR1-infected larvae compared to CAS (p=0.0002) and PSZ (0.0024) monotherapy. Antagonism was never observed. In conclusion, the combination of caspofungin with azoles is a promising alternative for the treatment of azole resistant strains of Af
Micro-analysis as a Tool for the Characterization of Historical Masonry Buildings: The Decorative Elements of the Basilica Della Beata Vergine Maria Del Rosario (Polesella, Rovigo)
No full textThe Basilica of the Beata Vergine Maria del Rosario of Polesella, the subject of this study, was built in the mid-eighteenth century in the village of Polesella (in the province of Rovigo, Veneto Region, Italy). Some restoration work on the Basilica has been necessary for recent years; this has allowed sampling of interior plasters on which preliminary microanalyses have been performed to better characterize the building materials used, in support of subsequent repair work. Among the many planned restoration works, interventions on the interior walls were, in addition, also planned. For this, the interior plasters and interior painting of the church were studied through observations with SEM–EDS. The objective of this work is mainly to show how archeometric analyses can be a valuable tool to improve the knowledge and characterization of the materials used, in this case, on some decorative elements of the Basilica. In particular, regarding the frescoes, the research was also aimed at identifying the type of pigments used by the author Luigi Battisti, believed to be the author of some of the works on display
Micro-analysis as a Tool for the Characterization of Historical Masonry Buildings: The Decorative Elements of the Basilica Della Beata Vergine Maria Del Rosario (Polesella, Rovigo)
No full textThe Basilica of the Beata Vergine Maria del Rosario of Polesella, the subject of this study, was built in the mid-eighteenth century in the village of Polesella (in the
province of Rovigo, Veneto Region, Italy). Some restoration work on the Basilica has been necessary for recent years; this has allowed sampling of interior plasters
on which preliminary microanalyses have been performed to better characterize the building materials used, in support of subsequent repair work. Among the many
planned restoration works, interventions on the interior walls were, in addition, also planned. For this, the interior plasters and interior painting of the church were studied
through observations with SEM–EDS. The objective of this work is mainly to show how archeometric analyses can be a valuable tool to improve the knowledge and
characterization of the materials used, in this case, on some decorative elements of the Basilica. In particular, regarding the frescoes, the research was also aimed at
identifying the type of pigments used by the author Luigi Battisti, believed to be the author of some of the works on display
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